Study on pore structure and diffusion coefficient of chloride ion in hardened low-alkaline cement

Mihara, Morihiro  ; Torii, Kazuyuki*

Low-alkaline cement using pozzolans is under consideration as a possible filling and structural material in geological disposal for long-lived radioactive waste. Silica fume and high-volume fly ash are used to develop the low-alkaline cement which is named as HFSC, High-volume Fly ash Cement. In this study, pore structure and diffusivity of chloride ion in HFSC pastes were investigated in order to understand the fundamental transport properties of ions.